There's a pack with those files in the downloads section, it's the data files. However, I think that these files are from 1.0, so you gotta make sure that it didn't change in 1.1 or 1.2. I have 1.2, for example, and I can't use export_descr_character_traits.txt to add traits because the 1.2 version is larger than the 1.0 I got on this site, so stuff has been added. Sure, I could simply edit the 1.2 version of the .txt, but that would mean I would also have to edit the corresponding strings.bin in the text folder, and neither the converter nor the editor work on my PC. I could email the three files you wanted to you, if you want, but I got the 1.0 and the 1.2 versions...